the sample proportion of females is  x=118  n=164 P = .720  #1 Make a 95% confidence interval for the proportion of female students. What is the margin of error?

Q: Dylan wants to determine a 99 percent confidence interval for the true proportion of high school…

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Q: Out of a sample of 600 adults aged 18 to 30, 162 still lived with their parents. Based on this,…

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Q: For a sampling distribution of n = 1500 and population proportion of 0.42 of those who prefer…

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Q: A recent study of a very large number of parents on cyberbullying showed that a 95% confidence…

A: Given data,For 95% CILower limit=0.1238Upper limit =0.2036Proportion (p)=?

Q: A survey of folk music fans yields this 95% confidence interval estimate of the proportion of fans…

A: The 95% confidence interval for the requires proportion is (0.74, 0.86). So, lower confidence limit…

Q: How much more likely are college men than college women to participate in intramural sports?  A…

A: The sample proportion for college men said that they participate in intramural sports is,…

Q: Kim wants to determine a 80 percent confidence interval for the true proportion of high school…

A: Given: Margin of error, E=0.04 Confidence level=80%

Q: one you would normally buy?" Of these users, 62% responded that they would buy the CD. CD with this…

A: Given N=704 Level of significance =0.01

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Q: You have a sample of 9 men and a sample of 8 women. The degrees of freedom for the t value in your…

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Q: We would like to know: "What percentage of college students drink alcohol every day?" In a random…

A: Given that, N=500 X=75

Q: For a sampling distribution of n = 500 and population proportion of 0.48 of those who prefer cookies…

A:

Q: A newspaper reporter asked an SRS of 100 residents in a large city for their opinion about the…

A: Given - Sample size = n = 100 Confidence Interval for proportion = (0.565 , 0.695)

Q: Everything else being equal, a population with a higher mean yields a confidence interval that is…

A: As the formula for confidence interval is: CI=X±Zsn Where: X = Mean of the data's Z = Z-value…

Q: How much more likely are college men than college women to participate in intramural sports?  A…

A: Given information: Number of college men surveyed, n1=688 Number of college women surveyed, n2=579…

Q: Identify the t-score for a 90% confidence interval if the sample size is 25. t = The answer isnt…

A: We have given that Confidence level (c) = 90% = 0.90 Significance level (α) = 1 - c = 1 - 0.90 =…

Q: music fans yields this 95% confidence interval estimate of the proportion of fans who love the music…

A: The sample proportion can be calculated as: Sample Proportion=LowerLimit+UpperLimit2 Thus, Sample…

Q: In one city, 59.6% of the 1500 students surveyed said they eat at the school cafeteria. Find the 95%…

A: Given, Sample size=n=1500 p^=0.596 α=0.05

Q: If n = 330 and X = 264, construct a 95% confidence interval for the population proportion, p. %3D…

A: From the provided information, Confidence level = 95% Sample size (n) = 330, x = 264 Sample…

Q: A survey of folk music fans yield this 95% confidence interval estimate of the proportion of fans…

A: Introduction:The 95% confidence interval for the requires proportion is (0.74, 0.86). So, lower…

Q: The number of television sets coming off a production line each day is known to have a standard…

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Q: What is tα/2,df for a 95% confidence interval of the population mean based on a sample of 15…

A: Solution: We have to find the t-critical value (tα/2) at the given significance level 1- 0.95=0.05…

Q: . A survey of folk music fans yields this 95% confidence interval estimate of the proportion of fans…

A: The 95% confidence interval for proportion of fans who love music of David Wilcox is 0.74 to 0.86

Q: A survey of folk music fans yields this 95% confidence interval estimate of the proportion of fans…

A: Solution: From the given information, the 95% confidence interval of the proportion of fans who love…

Q: A study found a confidence interval on the proportion of children that are hearing impaired was 0.04…

A: Given confidence interval is 0.04 to 0.16 i.e., p-E=0.04 -->1 p+E=0.16 -->2

Q: Cora wants to determine a 99 percent confidence interval for the true proportion p of high school…

A: Given data: Margin of error (E) = 0.01 Confidence level  = 99 % To find : The required sample size…

Q: (d) Develop a 95% confidence interval for this population proportion. (Round your answer to four…

A: The point estimate of proportion of respondent who lack confidence they will be able to afford…

Q: The American Heart Association is about to conduct an anti-smoking campaign and wants to know the…

A: Obtain the 85% confidence interval for the population proportion of Americans over 35 who smoke. The…

Q: You are going to construct a 99% confidence interval for the proportion of hip replacement…

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Q: From a recent survey, the 90% confidence interval estimate of the proportion of students who have…

A: Note: As per the guidelines only one question can be answered. Kindly,  resubmit the question with…

Q: For a sampling distribution of n = 800 and population proportion of 0.42 of those who prefer cookies…

A: We have find distribution...

Q: For a sampling distribution of n = 500 and population proportion of 0.48 of those who prefer cookies…

A: n = 500 p = 0.48

Q: The American Heart Association is about to conduct an anti-smoking campaign and wants to know the…

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Q: In one city, 32.4% of the 5000 students surveyed said they eat at the school cafeteria. Find the 95%…

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Q: The regression output was based on a sample of 213 cane toads. How many degrees of freedom does the…

A: Based on the given regression output, we are willing to carry out the degrees of freedom of the t…

Q: The sample correlation is -0.8. If the sample size was 40, then the 99% confidence interval states…

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Q: Beth wants to determine a 80% confidence interval for the true proportion of high school students in…

A: The formula for the confidence interval for population proportion is given by : C.I =…

Q: How effective is the flu shot?  In a control study, 94 of the 859 participants who received the…

A: Given ,  x1==94 , n1=859x2==46 , n2=923p1=x1n1=94859=0.1094p2=x2n2=46923=0.0498 α=0.05

Q: In a survey of 7000 women,4431 say they change their nail polish once a week. construct a 95%…

A: Given: Total number of women = n = 7000, Number of women said that they change their nail polish…

Q: Nearly one half of americans aged 25 to 29 are unmarried.  How large a sample is necessary to…

A: The formula for the sample size is as follows:

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Q: a random sample of 63, the proportion of the sample with a certain characteristic was 0.61. What is…

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Q: A confidence interval has been determined  to be -6<u<6, what was the sample mean that was used to…

A: Confidence Interval: Confidence interval is the interval estimate of the population parameter. It is…

Q: A researcher surveys a group of college students to determine the negative life events that they…

A: the given values are n1 = 18n2  = 16  X1 = 42X2 = 48SS1 =398SS2 = 370S21 = SS1n1-1…

Q: A sociologist is comparing the proportion of teenage boys who receive a text message at least once…

A: The  Conditions for the Confidence interval for the difference in population proportions • Samples…

Q: A random sample of high school seniors were asked whether they were applying for college. The…

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Q: Researchers studied the mean egg length (in millimeters) for a bird population. After taking a…

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Q: Melissa wants to estimate the proportion of adults in the U.S. who own a gun. To do so, she surveys…

A: Given information: Sample size of adults is 45, that is, n = 45. Number of adults who own a gun is…

Q: Identify the t-score for a 99% confidence interval if the sample size is 70. t = The answer isnt…

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Q: A survey was conducted to determine the proportion of adults who approve of attempts to clone a…

A: Given,   Lower bound = 0.09 Upper bound = 0.13   The objective is to find the point estimate of the…